The Periodic Table/12 - Magnesium (Mg)

Element Magnesium (Mg, 12)

Here you can read more about the chemical element Magnesium. Its shemical symbol is Mg and its atomic number is 12. The relative atomic mass of Magnesium is 24.3050 u. The elemental classification of Magnesium is Alkaline earth metals, and it belongs to group 2 and period 3 in the Periodic Table of Elements.

The density of Magnesium is 1740 kg/m3. And the mineral hardness of Magnesium is 2.5 Mohs. The melting point of Magnesium is 424 Kelvin (151 ℃). The boiling point of Magnesium is 1390 Kelvin (1117 ℃). Magnesium was discovered in the year 1755 by Joseph Black.

To the right (or below if you are using a mobile device with a smaller screen) you will find the information given above for the element Magnesium ordered in tabular form, which might be easier to read and use if you want to quantify it in some sort.

Data about element Magnesium

Chemical symbol
Element classification
Alkaline earth metals
Atomic number
Relativ atomic mass
Atomic mass
24.3050 u
1740 kg/m3
Melting point
424 K   (151 ℃)
Boiling point
1390 K   (1117 ℃)
Mineral hardness
2.5 Mohs
Discovered year
Discovered by
Joseph Black